puedy



J.S.APURDY.' 'FOUNTAIN PEN (Model.)

Patented June 5, 1883.

' WI TJV' ESSES N. PETERS. Phulo-Ulhngmphar. WashingtonV D4 C` Vpenembracing my inventions.

UNITED. STATES .PATENT '()FFIcla JOHN s. PURDY, or BROOKLYN, NEW YORK.

FOUNTAIN-PEN.

SPECIFICATION forming part of Letters, Patent No. 279,104, dated June 5,1883.

Application med rta-ich 29, ressa.v (Modi-.1.)

To all whom it may concern:

Beit known that I, JOHNS. PURDY, of Brooklyn, county of Kings, and Stateof New York, have invented a new and useful Improvement inFountain-Pens, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, makingpart of. this specification.

The invention relates to that class of pens which are provided with ahollow holder or writing with the pen, and also to prevent the cloggingofthe flow of the ink bythe accumulation of air bubbles or otherobstructions.`

Figure lis a vertical longitudinal vand sectional view, on an enlargedscale, of a fountain- Fig. 2 is an enlarged sectional view of the valve.Fig. 3 is a perspective view of the valve with its oscillating tongueand wire conductors; and Fig. 4 represents a transverse section throughthe valve-chamber and valv e-stem below the valve, and looking towardthe reservoir.

:ln-,the fountain-pens in use employing a tubular reservoir-holder, sofar as they have come to my knowledge, air-tubes have been employedcommunicating with the upper end of the holder, which is providedordinarily with a movable cap made adjustable for admitting air when thepen is in use, and for closing said air-tubes and preventing the es-.cape or evaporation of the ink when the pen.

is not in use. In my construction this airduct communicating with theupper end of the holder is dispensed with, and the holder is closed ormade air-tight at said end, the air necessary to supply the place of theink flowing out when the pen is in use being obtained through a duetdirectly above the pen itself, the ink passing outward to the penthrough a separate duct underneath the pen, as hereinl after explained.

In the accompanying drawings, A represents a tubular holder forming theink-reservoir, said holder being shown provided at its upper end with aclose-fitting screw-plug, A', which, being made removable, facilitatesthe cleaning of the holder, but when in place is airtight and preventsthe admission of air or the escape of ink at said end. The lower end ofthe holder A' is provided ,with an internal screwthread, which matches ascrew-threaded shank j on the upper end of the feed-tube B. Thisfeedtube is made in two parts, b and b', to permit the introduction of avalve, C, within a chamber, C', formed in the larger lower end of thepart b. The chambered portion b is provided with an internalscrew-thread, and at its extreme end is iliade with a flaring annularmouth matching a tapering annular flange or rib, b2, on the part b', andwhich, inside of or above said rib or flange, has an externalscrew-thread match-` ing the screw-thread in the chambered end of thepart b. By this constructiomasthe part b is screwed into the partb,thetapering annular collar is drawn or forced, wedge like, into theflaring end of the part b until a perfectly-tight joint between the twoparts of the feed-tube is secured. The part b of the feed-tube has acentral partition, b, dividing the longitudinal perforation through itinto two parts or duets, d and d', one above and the other below theslit e for the pen. This slit e is curved from side to side to conformto the arching shape of and adapting it to receive a pen of ordinaryform, the slit c, in connection with a coveringsleeve, D, screwing overthe part b and against the vertical outer faceof the flange b2, and theend of the part b serving to hold said pen. The ducts d and d', at theirinner ends, both communicate with the valve-chamber C', and extendthence, one, d, over the pen E and slit e, forming the air-duct for theadmission ofair to the holder, and the other, d', underneath said penand slit, forming the ink-duet, through which the ink Hows outward tothe pen E.

The valve C is made in two parts, c and IOO ther apart, or at anydesired angle or relation one with the other for regulating the flow orpassage of the ink. The upper end ofthe part c of the valve orvalve-stemis socketed and receives Vthe lower end of a tongue, g, whichis connected therewith bya pin or pivot, h,pass ing through an eye inthe end of said tongue, leaving the upper end of the tongue, which eX-tends up within the tubular holder, free to swing or oscillate from sideto side to conform tothe movements of the pen. The shank X of the part cis perforated orgrooved, and has a small wire, i, connected with it, theends or arms of which pass, one, i', through or partly through theair-duct d, and the other, i2, similarly arranged relatively to theink-duct d.

The upper tongue of the slit end of the feed tube B is by preferencemade somewhat lighter than the lower tongue, to adapt it to yieldslightly to the pressure of the pen upon it when in use, and it is alsopreferably made a little shorter, such construction serving to make theair-duct a little shorter, and to place the mouth of said duct a littlehigher than the mouth or outer end ot' the lower o r ink duct when thepen is in use. Y In operation the adjustment of the parts of the valveserves to regulate the flow of the ink the place of the escaping' ink.

through the valve-cha1nber,.as explained, and the wires connectedtherewith serve to prevent the formation of air bubbles, and also tobreak any bubbles that may in any way have been formed in other parts ofthe pen, and thereby to insure an even and steady i'low of the ink,while the tongue g, pivoted at its lower end within the feed-tube, withits swinging end extending up into the reservoir-holder, serves, by itsoscillation or movements from side to side with the movements of the penin use, to break p any bubbles of air passing from the air-duct up tothe upper end of the holder to supply The valve, so called, is notdesigned to close the tube or ink and air ducts entirely, but onlytoobstruct more or less, by its adjustment, as described, the flow of theink to the pen, and its crossheads will be adjusted to the desiredrelation to each other for that purpose when the pen is opened forilling the reservoir, their: adjust` ment being governed by the natureofthe ink employed, some inks flowing much more freely than others.Vhile the ink may descend to the pen by both the upper and lower ducts,

owing to its superior gravity, .it will naturally tend to the lowerduct, while the air will as naturally tend to and will enter thevalvechamber through the upper duct.

A represents a removable -cap or cover for covering and protecting thepen when not in use.

What I claim as my invention isl. A feed-tube made in two or more parts,the lower one having two ducts between the inkreservoir and the pen-oneabove and the other below the pen-which, in combination, carry the inkout to supply the pen and the air in to take the place of the ink,substantially as described.

2. The combination, with the feed-tube of a fountain-pen, of a valveprovided with two cross-heads made adjustable, one relatively to theother, for adjustingtheir L ngle of relation and distance apart,substantially as and for the purpose described.

3. In a fountain-pen, a valve made in two or more parts adjustablerelatively to each other, each provided with a cross-head, which,

bythe adjustment of the parts of the valve,

may be set at any desired angle of relation one to the other and at anydesired distance apart, in combination with an oscillating tongue,substantially as described.

L. An oscillating tongue connected with the valve in the feed-tube by ahinge-joint, and extending up into the reservoir-holder and forming anagitator within the body of the feed-tube, substantially as described.

An inloconductor made of wires connected with the valve and running'down through ducts leading to the pen, substantially as described.

6. A feed-tube provided with a slit for the pen, and two ink-ducts', oneabove and the other below the slit, in combination with thecovering-sleeve for holding the pen, substantially as described.

7. The combination, with a reservoir-holder, of the i'eedtube, valve,moving tongue or agitator, and wire conductor, substantially asdescribed.

In testimony whereof I have hereunto set my hand.

J OHN S. PURLY. Witnesses:

H. B. ZEVELY, EDW. W. .DE KNIGHT.

IOC)

It is hereby certified that in Letters Patent No. 279,104, granted June5, 1883, upon the application of John S. Purdy, of Brooklyn, N ew York,for zu] improvement in Fountain Pens, an error appears as follows: Thedate of filing the lppliezttion oomplete is printed March 29, 1883,whereas it should be January 18, 1883; lnd that the 'proper correctionhas been made in the tiles ot' the ease in the Patent Oee, and

should be reed in the said Letters Patent to nmke the saune conformtherewith.

Signed, eountersigned, and vsealed this 19th (lay of June, A. l). 1883.

D [SEAL] M. L. JOSLYN, Countersigned: Act/ng Secretary oft/Le Interior.

E. M. MARBLE,

Commissioner of Patents.

